Modify the versioning to be more readable

[domialex]

Semver2 does support having metadata, we could separate the day and month.

https://docs.velopack.io/packaging/overview#required-arguments

[leMicin]

The proposed format would be something like yyyy.M.dd-XX where XX is not yet determined. But because the second part is Mdd and versions need to increment always, we need to wait on a year change to do this.